[OPENMP] ppc64le recognized as big-endian

There is a bug in CMakeLists which causes powerpc64le systems to be recognized as big-endian. This patch fixes the issue.

Differential Revision: https://reviews.llvm.org/D23626

llvm-svn: 281068

openmp/runtime/CMakeLists.txt

@@ -65,6 +65,8 @@ else() # Part of LLVM build
     set(LIBOMP_ARCH x86_64)
   elseif(LIBOMP_NATIVE_ARCH STREQUAL "x86_64")
     set(LIBOMP_ARCH x86_64)
+  elseif(LIBOMP_NATIVE_ARCH MATCHES "powerpc64le")
+    set(LIBOMP_ARCH ppc64le)
   elseif(LIBOMP_NATIVE_ARCH MATCHES "powerpc")
     set(LIBOMP_ARCH ppc64)
   elseif(LIBOMP_NATIVE_ARCH MATCHES "aarch64")